Get Base Url Or Dynamic Url In view Js or html files

Thanks to Khoa for his explanation what I wanted to achieve is in my admin form I am calling an external url with ajax. I was using a static path so I wanted it dynamically. So here's what I have done.

My Layout XML File

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceContainer name="content">
                <uiComponent name="namespace_modulename_form"/>
                <block class="Namespace\Modulename\Block\Adminhtml\Edit" name="edit" template="Namespace_Modulename::edit.phtml" />
        </referenceContainer>
    </body>
</page>

Layout Phtml File I defined the baseUrl.

    <script>
        require([
            'mage/url'
        ], function(url) {
            return url.setBaseUrl('<?php /* @escapeNotVerified */ echo $block->getAdminBaseUrl();?>');
        })
    </script>

My block file which returns the base url

<?php

namespace Namespcae\Modulename\Block\Adminhtml;

class Edit extends \Magento\Framework\View\Element\Template
{

    protected $_configReader;

    public function __construct(
        \Magento\Framework\View\Element\Template\Context $context,
        \Magento\Framework\App\DeploymentConfig\Reader $configReader
    ) {
        $this->_configReader = $configReader;
        parent::__construct($context);
    }

    public function getAdminBaseUrl(){
        $config = $this->_configReader->load();
        $adminSuffix = $config['backend']['frontName'];
        return $this->getBaseUrl() . $adminSuffix . '/';
    }
}

Now in my js files I can use it as.

define([
    'Magento_Ui/js/form/element/abstract',
    'mage/url'
], function (Abstract, url) {
    'use strict';

    return Abstract.extend({
        url.build('namespace_module/controllername/action/');
    });
});

Just Do That Only in js file

define(['mage/url'], 
  function (url) {
   'use strict';
    var url = url.build('<modulename>/<controllername>/<actionname>');
});

Result will be:

http://ip_address/<modulename>/<controllername>/<actionname>

The most important thing we need to know: We need to set base url for url.build('<Modulename>/<controllername>/<action>/'):

lib/web/mage/url.js

        setBaseUrl: function (url) {
            baseUrl = url;
        },
        build: function(path) {
            if (path.indexOf(baseUrl) != -1) {
                return path;
            }
            return baseUrl + path;
        }

Basically, there are two places where to set the base url:

vendor/magento/module-checkout/view/frontend/templates/onepage.phtml vendor/magento/module-checkout/view/frontend/templates/cart/shipping.phtml

return url.setBaseUrl('<?php /* @escapeNotVerified */ echo $block->getBaseUrl();?>');

So, in your admin, you have to set the admin base url.

Tags:

Javascript

Magento2

Adminhtml

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